PowerBass 2XL-1240DS 12" Subwoofer PowerBass's new 2XLDS Subwoofers have been completely redesigned with a new custom cast aluminum basket and the motor moved to the outside of the basket in a more standard style to allow for lower frequency response and increased power handling, providing audiophile sound quality at extreme sound levels. Featuring a new NBR Nitrile Butadiene Rubber surround for increased linear accuracy and a proprietary Woven Glass Fiber Kraft Reinforced cone the 2XL series is built to perform. The custom cast aluminum basket provides perimeter venting to assist in cooling the newly redesigned 2.5 Black Kapton (BKSV) voice coil and inverted motor structure. Features - 12" Dual 4-Ohm Subwoofer 650 watt RMS / 1300 Watts Max Woven Glass Fiber Cone With Pressed Kraft Paper Reinforcement Nitrile Butadiene Rubber (NBR) Surround 2.5" Vented BKSV Voice Coil Former Perimeter Aero-Vent Voice Coil Cooling Vents Non Resonance DDC Coated Cast Aluminum Basket XTRA XTRA Large Doub